Fisher Price Motor Power

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Fisher Price Motor Power

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#19

04-02-2010, 16:44

vamfun

Mentor :Contol System Engineer

AKA: Chris

FRC #0599 (Robodox)

Team Role: Engineer

Join Date: Jan 2009

Rookie Year: 2003

Location: Van Nuys, California

Posts: 183

Re: Fisher Price Motor Power

Quote:

[*]Planetary[list][*] Low ratio (<5:1) 85-90% (depends on how good the bearings are, the grade of the gears, the size of the planets w.r.t. their axles... things like that)[*] High ratio (>7:1) 50%[*] Very High Ratio (>20:1 -- "hunting tooth" stages) 15% <<these are

What would you use for a Banebot 16:1 P60 gearbox? Banebot would not fess up to any number so I've been using 40%.

Do you use this factor to modify the free current (free speed) on the output of the gear box? I generally don't, but I know the friction load will slow the free speed down.

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